Method for determining a value of a current03/12/15 - 20150068610 - A method for determining a value of a current, which is required for changing a switching state of a pressure control valve of a fuel delivery system, in which the current flowing through the pressure control valve is varied from a starting value up to a target value, and a...

Automatic excess water flow saving system02/12/15 - 20150040989 - An automatic excess water flow saving system reduces the water loss by water outlets in houses and other water consuming installations. The system controls the water flow through an outlet by toggling the water flow rate. An actuator activates a timer which opens and closes a valve intermittently and continuously...

Flow control device and method02/12/15 - 20150040990 - A fluid flow control device includes a housing having a fluid inlet (7) and at least one fluid outlet (8). A first fluid flow restrictor (1) serves as an inflow port to a chamber (B) in the housing, and a second fluid flow restrictor (2) serves as an outflow port...

Parallel metering pressure regulation system for a thermal efficient metering system01/22/15 - 20150020888 - A fuel pressure regulation system is provided. The fuel pressure regulation system includes a supply arrangement for supplying an outlet flow. A primary metering circuit is provided, an inlet of which receives a first portion of the outlet flow of the supply arrangement, the primary metering circuit comprising a fuel...

Fluid pressure regulating system01/01/15 - 20150000752 - A fluid pressure regulating system includes an auxiliary fluid circuit having a high pressure region and a low pressure region, a pump connected to the auxiliary fluid circuit and configured to discharge fluid into the high pressure region of the auxiliary fluid circuit, and a check valve connecting the high...

System and method for enhancing the production level of wells01/01/15 - 20150000753 - A control system for optimizing the flow of fluid from a plurality of pipelines in communication with a resource field includes a sensor array detecting characteristics of the resource field, the plurality of pipelines, and the flow of fluid through the plurality of pipelines. A first manifold assembly and a...

Pressure monitoring system for a fuel tank and method11/27/14 - 20140345700 - A pressure monitoring system for a fuel tank includes a supply line fluidly coupling a fluid source with at least one fuel tank for supplying an inert gas to the at least one fuel tank. Also included is a pressure relief valve in communication with the supply line configured to...

Fuel conditioning system10/30/14 - 20140318634 - The present application provides a fuel conditioning system for delivering a flow of fuel to a nozzle in a gas turbine engine. The fuel conditioning system may include a fuel compressor to increase the pressure of the flow of fuel, a pressure reduction valve to decrease the pressure of the...

Air intake and a method of controlling the same10/23/14 - 20140311580 - The intake adjustment device comprises a flexible panel and an actuator with the actuator being adapted to deflect the flexible panel in a radially inwardly direction so as to reduce a cross-sectional area of the intake aperture and thereby to position a shock wave at the intake lip....

Reducing pressure drop buildup in bio-oil hydroprocessing reactors09/18/14 - 20140261715 - A method is provided involving reducing a pressure drop across a hydroprocessing reactor having a reactor feed and producing a hydroprocessing product, where the reactor feed includes a bio-oil feed and a hydrocarbon diluent; and the step of reducing the pressure drop comprises stopping or substantially reducing the bio-oil feed...

Systems and methods for fluid pump outlet pressure regulation09/18/14 - 20140261716 - Fluid pump pressure regulation systems and methods have a valve body with a bore and a valve spool. The valve spool connects a first and second port to a third port in different valve spool positions. The first port is in fluid communication with an output of a fluid pump...

Dialysis control valve having self-cleaning mode09/18/14 - 20140261717 - A valve system is provided that includes an electromechanical solenoid, a gas valve including a magnetic flapper, a power source in electrical communication with the electromechanical solenoid, and a controller. The controller is configured to control the power source to supply an intermediate voltage that causes the electromechanical solenoid to...

Main stage in-line pressure control cartridge with optional reverse flow function09/18/14 - 20140261718 - A main stage in-line pressure control cartridge. The cartridge selectively controls flow in-line in the same direction as opposed to directing flow at a 90 degree angle like other cartridges. A tubular poppet can be mounted into a body and has a sliding control sleeve that can expose radial holes...

Pumping of collected liquids in systems08/28/14 - 20140238499 - A system includes at least one fluid volume in which pressure varies, a retention volume for collecting a liquid used in operating the system; and a pump device in fluid connection with the retention volume and in operative connection with the fluid volume. The pump device includes a housing, a...

Compressor and/or expander device with rolling piston seal08/28/14 - 20140238500 - An apparatus can include a piston movably disposed within a pressure vessel and defines a first interior region and a second interior region. The piston has a first position in which the first interior contains a gas having a first pressure and has a volume greater than the second interior...

Aircraft inerting system08/28/14 - 20140238501 - A method of controlling a flow rate of inerting gas introduced into a vented aircraft fuel tank, the method comprising: monitoring changes in a quantity of a fuel in the aircraft fuel tank; monitoring changes in the ambient air pressure external to the aircraft fuel tank; and actively controlling a...

Fluid flow measurement and control08/07/14 - 20140216560 - In accordance with one embodiment, a controller in a fluid delivery system controls magnitudes of pressure in a first volume and a second volume. The first volume is of a known magnitude. The second volume is of an unknown magnitude and varies. The controller estimates a temperature of gas in...

Pressure relief valve07/24/14 - 20140202550 - A pressure relief valve and a mating fuel tank bung are installed directly on a fuel tank. In one embodiment a bung is welded directly to a fuel tank, and thereafter a pressure relief valve is attached directly to the bung by mating threads. This system and installation method provides...

Connecting piece of a transport line07/10/14 - 20140190572 - A tempered connecting piece is provided for transporting a viscous fluid, and includes an excess pressure release component, which separates the inside of the connecting piece from a discharge line and is fixed to an outer edge on the discharge line. The excess pressure release component is designed to release...

Hydraulic gain of transmission control elements07/03/14 - 20140182693 - A system controlling gain in a control element includes a source of line pressure, a source of signal pressure, a control valve that controls communication between line pressure and the control element, including a first differential area communicating with control element pressure, and a second differential area, and a gain...

Backpressure regulator for easy pump start-up07/03/14 - 20140182694 - A system and method for automatically performing start-up and overpressure relief functions in association with a primary fluid carrier such as, for example, a liquid handling pipeline or tank. The system includes a main valve for primarily exhausting air from the system as it fills with a liquid. A start-up...

Fault isolation & decontamination procedures for electrohydraulic valves06/26/14 - 20140174550 - A method for isolating a fault or blocked work port in an electro-hydraulic system is disclosed. In one step, a system pump is set to a first predetermined pressure and a valve assembly is commanded to a center position. In another step, the center position of the valve is recorded....

Variable gas pressure regulator06/26/14 - 20140174551 - A variable gas pressure regulator comprises a throttling valve regulating the fluid flow between a high-pressure fluid inlet and a regulated space fluidly connected to a fluid outlet, a high-pressure solenoid commanded to control fluid flow between the fluid inlet and a control space and a low-pressure solenoid commanded to...

Dual feedback vacuum fluidics for a flow-type particle analyzer06/12/14 - 20140158212 - The present invention relates to a vacuum-driven fluidic system for a flow-type particle analyzer. The system includes a vacuum pump which creates a pressure drop downstream of the flow cell, which pulls sheath fluid and sample fluid through the flow cell. A variable-resistance fluidic resistor is configured to control the...

Positive isolation through isolation of air supply to pneumatic valves06/05/14 - 20140150885 - Systems and methods are described for actuating a plurality of pneumatic valves to positively isolate one or more pieces of equipment. A manual valve can be disposed on a supply conduit that fluidly couples each of the pneumatic valves to a fluid supply source. To place the pneumatic valves in...

Method for operating a fuel system, and fuel system05/22/14 - 20140137948 - In a method for operating a fuel system of an internal combustion engine, the fuel system has a fuel tank and a ventilation device, which has at least one vent valve, for ventilating the fuel tank. The magnitude of deformation caused by an internal pressure of the fuel tank of...

Flow reduction for bleed air systems05/15/14 - 20140130883 - A valve control system includes a valve connected to regulate flow of a medium provided to an output and a sensor connected to monitor a feedback value associated with the medium. A controller modulates the valve based on a comparison of a reference value to the feedback value provided by...

Slam shut safety device having disc arrestor assembly05/15/14 - 20140130884 - A slam-shut safety device having a disc arrestor includes a valve body, a valve seat between an inlet and an outlet, and a reset pin shiftable between untripped and tripped positions. A valve disc support includes has a threaded stem and is operatively coupled to the reset pin. A valve...

Fuel system having dual fuel pressure regulator05/01/14 - 20140116523 - A pressure regulator is disclosed having a body, a valve seat dividing a cavity of the body into first and second portions, and an end stop movable against a bias to selectively engage the valve seat and isolate the first and second portions. The pressure regulator may also have a...

Fluid supply system and method of controlling fluid supply system05/01/14 - 20140116524 - A fluid supply system includes a tank, a shutoff valve, a fluid fill channel, a fluid supply channel, a fill detector, a pressure detector, and a controller. The shutoff valve includes a shared channel to enable fluid to flow from a fill hole to the tank and to flow from...

Aircraft bleed system and method of controlling an aircraft bleed system04/24/14 - 20140109978 - An aircraft bleed system includes a low pressure supply port for delivering a first fluid at a first pressure. Also included is a high pressure supply port for delivering a second fluid at a second pressure, the second pressure greater than the first pressure. Further included is a feedback circuit...

Upstream sense for balance port04/03/14 - 20140090717 - A fluid regulating device includes a regulator valve having a valve body defining an inlet and an outlet and a valve port disposed between the inlet and the outlet. A housing assembly is disposed adjacent the valve port, and the housing assembly includes a first aperture adapted to receive a...

Slam shut safety device having disc anti-rotation03/27/14 - 20140083515 - A slam-shut safety device includes a valve body and defining a flow path, a valve disc mounted on a valve disc support is movable between an open first position spaced away from the valve seat and a closed second position seated against the valve seat. A reset pin is operatively...

Solenoid valve control device and solenoid valve control method03/06/14 - 20140060661 - An internal pressure sensor detects an internal pressure of the fuel tank, which stores fuel. A solenoid valve is configured to close to seal the fuel tank and is configured to open to open the fuel tank. An internal pressure acquisition unit is configured to acquire an internal pressure of...

Methods and apparatus for enhanced gas flow rate control02/27/14 - 20140053912 - The present invention provides methods and apparatus for controlling gas flow to a semiconductor-processing chamber. The invention includes deactivating ratio setpoint feedback control in a flow ratio controller; initiating gas flow through the flow ratio controller; moving valves of the flow ratio controller to a preset position based on a...

Oil bypass valve02/27/14 - 20140053913 - A bypass valve which may direct excess oil back into the cam chest where the return side of the oil pump may send the oil back into the oil tank. The bypass valve may fit within the bypass port of the cam plate and connect with a high pressure feed....

Pressure and temperature balancing valve system for a roman tub02/20/14 - 20140048142 - A method for avoiding scalding a bather with hot water from a hand held shower head, including operationally connecting hot and cold water supplies to a bathtub fill spigot, operationally connecting a compact pressure balanced valve having an output and a plurality of inputs to a bathtub deck, operationally connecting...

Valve system01/30/14 - 20140026972 - A valve system for use in an inflatable bladder having two opposing layers and a bladder interior disposed between the two layers, the valve system includes (i) an aperture disposed at a position on one layer for filling and deflating the bladder interior,...

Method and device for preventing a mud relief valve from incorrect opening01/16/14 - 20140014191 - A device for preventing a primary relief valve in a mud system from opening at a pressure lower than a nominal opening pressure includes a flow restrictor between a mud pump of the mud system and the primary relief valve. In addition, the device includes a cavity between the flow...

Pressure fuse or breaker01/02/14 - 20140000723 - Described are pressure fuses or pressure breakers which regulate the pressure downstream from the device. When the fluid pressure exceeds the trip pressure, the pressure fuse or breaker will trip and protect other components downstream of the fuse or breaker. Also described are methods of regulating pressure downstream from a...

Method and apparatus for rapid pump-down of a high-vacuum loadlock11/28/13 - 20130312835 - A gas expansion module for use with semiconductor wafer loadlocks and other regulated-pressure components of semiconductor processing tools is provided. The gas expansion module may be barometrically isolated from the loadlock or other component and pumped down to a vacuum condition while the loadlock is performing operations at a higher...

Adjustable doser valve11/28/13 - 20130312836 - A doser valve with a seat comprising at least one axially located slot from an outer surface of the seat and at least one radial/tangential extending passage in fluid communication with the at least one axially located slot and an exit passage out of the seat....

Apparatus, systems and methods for a flow control device10/24/13 - 20130276901 - A flow control device for control of fluid flow through a tubular member comprises a control chamber having a piston disposed therein, where the piston is moveable from an open piston position to a closed piston position by the application of a first fluid pressure, and a valve chamber having...

Central tire inflation wheel assembly and valve10/24/13 - 20130276902 - The present invention is a central tire inflation system and a valve for use in the system including a casing securable to the rim of a vehicle in communication with the tire that houses a main body connectable to a pressurized fluid supply of the central tire inflation system, and...

Active valve for ventilators10/24/13 - 20130276903 - A valve (100) for controlling pressure in a ventilation system is disclosed. The valve comprises an electromagnet (105, 106), a shaft (107) connected to the electromagnet, and a diaphragm (110) connected to the shaft, wherein the electromagnet applies force to the diaphragm based on an input. The ventilation system comprises...

Pressure control device10/10/13 - 20130263929 - A pressure control device for isolating a section of a conduit is described. The device comprises a support member, a flexible cup member mounted to the support member, a first swellable element, the first swellable element adapted, upon activation by an activation fluid, to urge a first portion of the...

Pilot valve controlled positive and negative pressure relief valves10/10/13 - 20130263930 - Concepts and technologies disclosed herein for relief valves (“relief valves”). A relief valve can include a flow path, a primary valve poppet that is urged or biased into a closed position by a tensioned spring, and a pilot valve in communication with a valve compartment of the relief valve. When...

Emergency pneumatic tire inflator10/03/13 - 20130255790 - This is a pneumatic device used to transfer air from an inflated tire to a deflated tire using a flexible tube and methods of use. The transfer tube is flexible and allows sealed air to transfer through in one direction by using standard screw-on valve connectors on each end and...

Fluid regulator having improved flow stability10/03/13 - 20130255791 - A fluid regulator includes a regulator body having a fluid inlet and a fluid outlet connected by a fluid flow path, with a portion of the regulator body forming a first chamber and a second chamber, an orifice disposed in the fluid flow path, a seat, and a control element...

Latching clutch valve09/12/13 - 20130233396 - A hydraulic valve for a vehicle transmission includes a housing, a valve piston, an actuating piston, and a bi-stable spring. The housing is connectable with an inlet passage and an outlet passage for the transmission. The valve piston is sealed to the housing and selectively blocks a fluid flow between...

Regurgitant control directional flow valve for simulating cardiovascular hemodynamics09/12/13 - 20130233397 - A directional flow valve in a cardiovascular prosthesis test system includes a regurgitant flow passage. Forward flow from a pump through the valve is unrestricted and allowed to pass freely through the directional flow valve. Regurgitant flow is allowed across the directional flow valve to reduce a negative pressure gradient...

Column pressure regulation system and method08/22/13 - 20130213486 - A system for regulating a pressure of a piston on a bed in a flow through column system, where the flow through column system includes a piston pressure chamber in communication with the piston and an inlet line and an outlet line in communication with the bed. A pump has...

Fluid activated flow control apparatus08/15/13 - 20130206242 - Embodiments of a fluid flow regulating device and methods of using the same are described. Certain embodiments manages fluid flow between one or more input ports and output ports at least partly in response to fluid pressure changes and/or by a mechanism driven by fluid flow, optionally without using electrical...